| Value | Meaning |
|---|---|
| Even1 | Region has an even number within a set. |
| Odd2 | Region has an odd number within a set. |
| First4 | Region is the first one within a set. |
| Last8 | Region is the last one within a set. |
| Only16 | Region is the only one within a set. |
| Sorted32 | Region is part of a sorted area. |
Describes a region within a widget.